Change in coreboot[master]: soc/amd/common/block/lpc/spi_dma: Yield after completing transaction

[Raul Rangel (Code Review)]

Attention is currently required from: Jason Glenesk, Marshall Dawson, Julius Werner, Felix Held.
Hello build bot (Jenkins), Jason Glenesk, Marshall Dawson, Felix Held,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/56321

to look at the new patch set (#2).

Change subject: soc/amd/common/block/lpc/spi_dma: Yield after completing transaction
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soc/amd/common/block/lpc/spi_dma: Yield after completing transaction

There is no telling when the next udelay will be, so explicitly call
`thread_yield()` after completing a transaction. This will allow any
pending transactions to immediately start.

BUG=b:179699789
TEST=Verify new transaction is enqueued right after another.

Signed-off-by: Raul E Rangel 
Change-Id: I9c1272bde46c3e0c15305b76c2ea7a6dde5ed0b0
---
M src/soc/amd/common/block/lpc/spi_dma.c
1 file changed, 3 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/21/56321/2